Improvement in metallic roofs



parts.`

4WILLI/ln' Li.- BARRY, or NASHVILLE, TENNESSEE.

Leners Patent Ne. 107,649, dated september 21, 1870.

IMPROVEMENT IN METALLIC ROOFSQ,

' The Schedule referred to in these Letters Patent and making peut of the same.

-To all whom it may conce/rn Be it known that I, WrLLmnr M. BARRY, of Nash- \ille;in the county of Davidson and State of Tennesee, have invented a new and useful Improvement in Metallic Roofs; and I do Vhereby ,declare that the following is a full, clear, and exact description there? of, which will enableothers skilled in the art to make and use the same, reference being had tothe accompanying drawing forming part of this specification.

This invention relates to a new and useful limprovement in the construction of roofs for railroadcars 'and other purposes, whereby many of the objections which have hitherto been met with in the construction of roofs are'obvated; and Y It conssts'in the inode ot' making the joints in,A the sheets of the covering, and' in confining the sheets nswill be hereinafter more fully described.

In theaccompanying drawing- Figure l represents a longitudinal vertical section of aI root', constructed aecordingto my-invention, showing the corrugations and mode of forming the joints. 4 Y

Figure 2 is a vertical cross-section, showing the fastening-rods. Y Y.

Similar letters ot' reference indicate corresponding A represents the wood roof,4 which is supported by ribs B inthe ordinary manner.`

C represents the metallic coveringwith which the root'. is covered. -V

This covering is composed of sheets of any suitable I netal, with their edges corrugated, as seen in lig. 1.

These corrugations are of uniformsize and shape,

so'that when placed upon the roof and lapped over each other, as seen Vin the-drawing, they fit closely together withfthe edge of the outside sheet at thebot-tom ofthe inside corrugation of the inside sheet,

as seen' atfD, fig. 1.'

ceives the fastening-rod E.l

This formation leaves a central groove, which re This rod lies in the groove, and is-confined at itsY ends by screw-nuts, or in any other. suitable mannen, tol the longitudinal cornice-piece F, as lseen, or the longitudinal pieces may be dispensed with, and a separate ear or stand may be attached to the roof, through which each end of the rod may pass, and then be secured by screw-nuts, as before stated.

It will be seen that a perfectly water-tight joint is formed while the sheets are held firmly together, and to the roof, without soldering or nailing.

The sheets may be readily removed for repairs orfor substituting othersin their places.

By this mode of forming .the joint a tight, cheap, and most durable root' is formed, notV only for cars,

but for other structures. ,L

Havin g t-hns described my invention, `I claim as new and desire to secure by Letters Patent- 4 i ',lhe combination of a series of plates, doubly cor'- rugated only on two opposite edges, witha fastening- 1rod,E,:'tlireaded' at the ends., and secured to the cornice-pieces by nuts, as shown and described.

l l WILLIAM M. BARRY. Witnesses:

W. W. J oHNsoN, GoRNE'LrUs FOLEY. 

